摘要:
Die Erfindung betrifft ein Verfahren zum Verbinden zweier aufeinander angeordneter Ble- chendabschnitte (102, 104). Das Verfahren umfasst: Bereitstellen eines die beiden Blechendabschnitte (102, 104) umfassendes Doppel- blechelement (100), Bilden eines Verbindungsabschnitts (166; 176; 602) entlang der Verbindungslinie, wobei das Bilden des Verbindungsabschnitts (166; 176; 602) umfasst: Einbringen einer ersten Vertiefung (160) in das Doppelblechelement (100), Bilden eines ersten gefalteten Abschnitts (166) des Doppelblechelements (100), Aufrichten des Verbindungsabschnitts relativ zu einer Erstreckungsebene (152) des Doppelblechelements(100), sodass sich der Verbindungsabschnitt (166; 176; 602) senkrecht zu der Erstreckungsebene (152) erstreckt.
摘要:
L'invention concerne un dispositif de pliage pour former une ondulation dans une pièce d'angle (1 ) comportant : - un bâti inférieur (24); - un élément central de matrice (26) correspondant à la forme d'une portion centrale de l'ondulation; - deux éléments latéraux de matrice (27) aptes à définir une empreinte correspondant à la forme d'une première et d'une seconde portions extrêmes de l'ondulation; - un bâti supérieur (25) mobile verticalement; - un poinçon central (40) apte à s'engager à l'intérieur de l'empreinte de l'élément central de matrice (26) lors du mouvement du bâti supérieur (25) vers sa position de pliage; - deux ensembles mobiles (41, 42) comportant chacun deux serre-flancs (43, 44), un poinçon-couteau (45, 53); et une surface de came (57) apte à coopérer avec un suiveur de came (58) porté par le bâti inférieur (24) de sorte à déplacer les ensembles mobiles vers une position rapprochée lors du mouvement du bâti supérieur (25) vers sa position de pliage.
摘要:
A method of making metal target blank (1) using circular groove pressing includes pressing a metal or metal alloy target blank (1) in a first circular grooved pressing die set (20A, 20B) into a first concentric corrugated shape while maintaining an original diameter of the target blank (1) to create concentric rings of shear deformation in the target blank (1). Forces are then applied to the concentric corrugated target (1) blank sufficient to substantially flatten the target blank with a flat die set (30A, 30B) while maintaining the original diameter of the target blank (1) to restore the target blank (1) to a substantially flat condition. The target blank (1) is pressed in a second circular grooved die set (40A, 40B) into a second concentric corrugated shape while maintaining the original diameter of the target blank (1), wherein the second die set (40A, 40B) has a groove pattern offset from a groove pattern of the first die set (20A, 20B) so as to create concentric rings of shear deformation in areas of the target blank which were not previously deformed. Forces are again applied to the concentric corrugated target blank (1) sufficient to substantially flatten the target blank (1) with a flat die set (30A, 30B) while maintaining the original diameter of the target blank (1) to restore the target blank to a substantially flat condition.
摘要:
An assembly for press forming a deformable material including: a first die array including a plurality of dies, the first die array defining a first die profile; a second die array that is complementary with the first die array and including a plurality of dies, the second die array defining a second die profile that is complementary with the first die profile; and a drive for driving at least one of the first die array and the second die array; wherein in use the plurality of dies of the first die array and the plurality of dies of the second die array sequentially engage the deformable material along a processing length to deform the deformable material to a predetermined profile.
摘要:
The present invention relates to a method of manufacturing a plate heat exchanger comprising a stack of plate parts of metal sheet, between which plate parts two media flow that exchange heat through the plate parts. The method comprises forming a pattern of channels on at least one length of plate and subsequently folding the length of plate to the effect that it forms a stack of continuous plate parts of altematingly a section of length of plate with pattern of channels and a plane section. Moreover, in accordance with the invention, the pattern of channels can be formed by a first rolling of folds transversally of the plate part of metal sheet and subsequently embossing the profile pattern by pressing or rolling completely or partially over the pre-rolled folds. The invention further relates to a plate heat exchanger made by one or more of said methods.
摘要:
A method and apparatus for producing ultra-fine grained metal material sheets. The apparatus molds and rapidly solidifies a metal material to form a fine grain precursor. The precursor is then subjected to a series of successive alternating tensile and compressive strains that alter the grain structure of the precursor so as to form a ultra fine grained structure in sheet form. The sheet form may then be subjected to superplastic forming to form a net shaped article.
摘要:
Die Erfindung betrifft ein Folgeverbundwerkzeug (1), zur Herstellung einer strukturierten Metallfolie (4) mit mindestens zwei Strukturen (39, 41), wobei eine der beiden Strukturen (39, 41) die andere Struktur (41, 39) zumindest teilweise überlagert, wobei das Folgeverbundwerkzeug (1) aus einem Werkzeugoberteil (6) und einem Werkzeugunterteil (7) besteht. Aufgabe der vorliegenden Erfindung ist es daher, eine Vorrichtung anzugeben, die die Herstellung sehr dünner, strukturierter Metallfolien mit grosser Oberfläche unter Einhaltung hoher Qualitätsstandards erlaubt. Diese Aufgabe wird dadurch gelöst, dass das Folgeverbundwerkzeug (1) mindestens drei räumlich getrennte Arbeitsbereiche (2, 5, 37) aufweist, nämlich einen Stanzbereich (37), zur Entfernung von Folienmaterial an bestimmten Positionen der Metallfolie (4), einen primären Formgebungsbereich (5) zur Einbringung der, vorzugsweise gewellten, Primärstruktur (41)in die Metallfolie (4) und einen sekundären Formgebungsbereich (2) zur Einbringung der, vorzugsweise gewellten, Sekundärstruktur (46) in die Metallfolie (4), vorzugsweise in die Primärstruktur (41) der Metallfolie (4). Die Erfindung betrifft auch ein Verfahren zur Herstellung einer strukturierten Metallfolie.
摘要:
An apparatus and method for forming corrugated contours (52) in a sheet (50) are provided. The apparatus includes at least three pairs of elongate dies (32) that extend in a longitudinal direction. Each pair of dies is generally parallel and defines a nip (33) therebetween so that the sheet can be moved successively through the nips. At least one actuator (34) is configured to actuate each pair of dies in successively opposed directions generally perpendicular to a direction of motion of the sheet to thereby form the contours in the sheet. Further, each pair of dies is adjustable in a transverse direction generally parallel to the direction of motion of the sheet so that an offset distance between each successive pair of dies can be adjusted.
摘要:
A method of continuously press-forming panels having a profile which is not a straight line from a substantially planar strip of plastically deformable material comprising the steps of imparting a curved profile to a leading end of the strip, passing the strip between presser means (15,16) arranged and adapted to cause stream lines of material to depart from a reference surface while ensuring that the reference surface conforms substantially to a converging curved surface, until a transversely curved version of the required panel having a curved reference profile is attained, and then allowing or causing that curved version to adopt the disposition of a finished panel having a substantially straight-line reference profile. Apparatus for forming the panels is also described.